摘要:
The present invention relates chiefly to a hydraulic brake booster comprising a motor, preferably an electric motor. The main subject of the invention is a hydraulic brake booster comprising a thrust chamber (76) receiving, on command, a pressurized hydraulic fluid that drives a hydraulic piston (78) that drives a piston of a master cylinder, characterized in that it comprises a source of pressurized hydraulic liquid (116) provided with an electric motor (88) driving a hydraulic fluid pressuring device. The invention applies notably to the automotive industry. The invention applies mainly to the braking industry.
摘要:
The present invention relates mainly to a braking system comprising a master cylinder comprising means of connection to a hydraulic braking circuit and means of connecting at least one chamber of the master cylinder to means of injecting brake fluid into said chamber. The main subject of the invention is a master cylinder (48) comprising at least one variable-volume chamber and one moving piston (207), the movement of which causes the volume of said chamber to vary, and means of connecting said chamber to a hydraulic braking circuit, characterized in that it further comprises means (217) of connection to a source (116) of pressurized brake fluid. The invention applies notably to the motor industry. The invention applies mainly to the braking industry.
摘要:
The three-way valve simulator (100) for a vehicle brake servo comprises: a control piston (106); and a reaction piston (140) remote from the control piston when the simulator is at rest.It is arranged such that the control piston, under the effect of a command transmitted from outside the simulator, can be moved over a predetermined travel in the direction of the reaction piston without transmitting stress to the latter.
摘要:
Braking system with master cylinder (100), decoupled from the brake pedal and hydraulic brake booster (200), comprising a boost chamber (206) in which the rear of the piston (110) of the master cylinder (100) is inserted, supplied in a controlled manner by a high-pressure unit (300), supplying brake fluid under high pressure on command to the boost chamber in order to act on the piston (110) of the master cylinder (100), and an actuator chamber (209) receiving an actuator piston (220) connected to the control rod (230) of the brake pedal. A controlled hydraulic link (320, 321) connects the boost chamber (206) and the actuator chamber (209) and a further controlled hydraulic link (310, 311) connects the actuator chamber (209) to the chamber of a brake simulator (270).
摘要:
The three-way valve simulator (100) for a vehicle brake servo comprises: a control piston (106); and a reaction piston (140) remote from the control piston when the simulator is at rest.It is arranged such that the control piston, under the effect of a command transmitted from outside the simulator, can be moved over a predetermined travel in the direction of the reaction piston without transmitting stress to the latter.
摘要:
The present invention relates mainly to a brake booster that is adjustable, notably in terms of the value of the jump. Advantageously, according to the invention, the target value for equilibrium of operation of the booster actuator is altered. A target value of a signal delivered by a position sensor is defined either by programming the electronic control unit or by selecting a coefficient in a program as a function of the braking characteristic or characteristics that it is desired to implement. Once the setpoint value has been determined, the electronic control unit commands the actuator using a setpoint value so that the actuator permanently and dynamically works toward achieving the previously defined and/or selected target value. The setpoint may be calculated as a function of torque, force, position or some other parameter.
摘要:
Brake system comprising a thrust rod (130) driven by the servobrake (200) and actuating the piston (110) of the master cylinder (100), the servobrake (200) being linked by a hydraulic actuator (270) to the control rod (230) of the brake pedal (PF).The servobrake (200) comprises an actuator piston (220) controlled by an electric motor (265) via a rack drive (260). A simulator chamber (250) delimited by the hydraulic actuator (270) is subdivided by an intermediate piston (240) into a rear volume (V1) and a front volume (V2), respectively delimited by the intermediate piston (240). A duct (L1) links the rear volume (V1) to a duct (L2) linked to the front volume (V2) by a first solenoid valve (EV1) and the duct (L2) to the tank (115) by a second solenoid valve (EV2). The piston (240) is linked to the rod (130) bearing an abutment (132) to be thrust by the actuator piston (220).
摘要:
Braking system with master cylinder (100), decoupled from the brake pedal and hydraulic brake booster (200), comprising a boost chamber (206) in which the rear of the piston (110) of the master cylinder (100) is inserted, supplied in a controlled manner by a high-pressure unit (300), supplying brake fluid under high pressure on command to the boost chamber in order to act on the piston (110) of the master cylinder (100), and an actuator chamber (209) receiving an actuator piston (220) connected to the control rod (230) of the brake pedal. A controlled hydraulic link (320, 321) connects the boost chamber (206) and the actuator chamber (209) and a further controlled hydraulic link (310, 311) connects the actuator chamber (209) to the chamber of a brake simulator (270).
摘要:
The present invention relates mainly to a braking system comprising a master cylinder comprising means of connection to a hydraulic braking circuit and means of connecting at least one chamber of the master cylinder to means of injecting brake fluid into said chamber.The main subject of the invention is a master cylinder (48) comprising at least one variable-volume chamber and one moving piston (207), the movement of which causes the volume of said chamber to vary, and means of connecting said chamber to a hydraulic braking circuit, characterized in that it further comprises means (217) of connection to a source (116) of pressurized brake fluid.The invention applies notably to the motor industry.The invention applies mainly to the braking industry.
摘要:
The present invention relates chiefly to a hydraulic brake booster comprising a motor, preferably an electric motor.The main subject of the invention is a hydraulic brake booster comprising a thrust chamber (76) receiving, on command, a pressurized hydraulic fluid that drives a hydraulic piston (78) that drives a piston of a master cylinder, characterized in that it comprises a source of pressurized hydraulic liquid (116) provided with an electric motor (88) driving a hydraulic fluid pressuring device.The invention applies notably to the automotive industry.The invention applies mainly to the braking industry.